title: Fiber-optic multi-sensor array for detection of low concentration volatile organic compounds.
abstract: In this paper, we proposed a new type high sensitive volatile organic compounds (VOCs) gas sensor array that is based on the pulse width modulation technique. Four different types of solvatochromic dyes and two different types of polymers, were used to make the five different types of sensing membranes. These were deposited on the five side-polished optical fibers by a spin coater to make the five different sensing elements of the array. In order to ascertain the effectiveness of the sensors, five VOC gases were tested. Finally, principal component analysis (PCA) has been used to discriminates different types of VOCs.
authors.forename: Md Rajibur Rahaman
authors.initials: MR
authors.lastname: Khan
authors.forename: Byoung-Ho
authors.initials: BH
authors.lastname: Kang
authors.forename: Sang-Won
authors.initials: SW
authors.lastname: Lee
authors.forename: Su-Hwan
authors.initials: SH
authors.lastname: Kim
authors.forename: Se-Hyuk
authors.initials: SH
authors.lastname: Yeom
authors.forename: Seung-Ha
authors.initials: SH
authors.lastname: Lee
authors.forename: Shin-Won
authors.initials: SW
authors.lastname: Kang
mesh_terms: D004396:Coloring Agents / Q000737:chemistry; D005336:Fiber Optic Technology / Q000295:instrumentation*; D005740:Gases / Q000032:analysis; D008968:Molecular Conformation; D055100:Optical Fibers; D025341:Principal Component Analysis; D012815:Signal Processing, Computer-Assisted; D055549:Volatile Organic Compounds / Q000032:analysis*
chemical_list: D004396:Coloring Agents; D005740:Gases; D055549:Volatile Organic Compounds